volume 55, issue 5, P1326-1335 1990
DOI: 10.1135/cccc19901326
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Abstract: The free tetrasaccharide GlcNAc-MurNAc-GlcNAc-MurNAc was converted into the tetrasaccharide bis-pentafluorophenyl ester I by treatment with bis(pentafluorophenyl)carbonate. Reaction of I with suitably protected peptides afforded [GlcNAc-MurNAc-L-Ala-D-Glu(OBzl)2]2 (II) and [GlcNAc-MurNAc-L-Ala-D-iGln-L-Lys(Z)-OBzl]2 (IV). Catalytic hydrogenolysis of compound II and IV yielded (GlcNAc-MurNAc-L-Ala-D-Glu)2 (III) and (GlcNAc-MurNAc-L-Ala-D-iGln-L-Lys)2 (V), respectively. [GlcNAc-MurNAc-L-Ala-D-iGln-L-Lys(St)2]2 (…

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